Synthesis of Novel Diarylethenes Bearing Naphthalimide Moiety and Photochromic Fluorescence Behaviors

The objective of the research was to synthesise new photo switchable photochromic fluorescence compounds. Starting from N-butyl-4-bromo-3-iodo-1,8-naphthalimide new compounds: 3,4-Bis(2-phenyl-5-methyl-4-thiazolyl)-N-butyl-1,8-naphthalimide 1O and 3,4-Bis(3,5-dimethyl-4-isoxazolyl)-N-butyl-1,8-napht...

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Main Author: Ersin ORHAN
Format: Article
Language:English
Published: Turkish Chemical Society 2017-03-01
Series:Journal of the Turkish Chemical Society, Section A: Chemistry
Subjects:
Online Access:http://dergipark.gov.tr/jotcsa/issue/27167/296370?publisher=turchemsoc
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author Ersin ORHAN
author_facet Ersin ORHAN
author_sort Ersin ORHAN
collection DOAJ
description The objective of the research was to synthesise new photo switchable photochromic fluorescence compounds. Starting from N-butyl-4-bromo-3-iodo-1,8-naphthalimide new compounds: 3,4-Bis(2-phenyl-5-methyl-4-thiazolyl)-N-butyl-1,8-naphthalimide 1O and 3,4-Bis(3,5-dimethyl-4-isoxazolyl)-N-butyl-1,8-naphthalimide 2O were prepared via two step Suzuki coupling reaction of aryl boronic acid and esters, and their photochromic fluorescence properties were investigated. Although all prepared bisaryl naphthlimides were fluorescence due to the naphthlimide moiety, among them photochrome 1O displayed photochromism. On exposure to ultraviolet light, the photochrome 1O showed a pale yellow to blue-green colour change due to the formation of ring closed form 1C, which reversed to the ring opened form 1O on exposure to visible light. Conversion ratio and quantum efficiency (from O to C form) for 1O were also determined. Additionally, a solvent effect on the fluorescence properties of 1O and 2O was investigated. Increase of solvent polarity results in a red shift (to longer wavelengths) of the fluorescence emissions.
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spelling doaj.art-cbf6a8f1ccf84c31ab2e03321ca0754d2023-02-15T16:12:04ZengTurkish Chemical SocietyJournal of the Turkish Chemical Society, Section A: Chemistry2149-01202017-03-014250151610.18596/jotcsa.296370182Synthesis of Novel Diarylethenes Bearing Naphthalimide Moiety and Photochromic Fluorescence BehaviorsErsin ORHANThe objective of the research was to synthesise new photo switchable photochromic fluorescence compounds. Starting from N-butyl-4-bromo-3-iodo-1,8-naphthalimide new compounds: 3,4-Bis(2-phenyl-5-methyl-4-thiazolyl)-N-butyl-1,8-naphthalimide 1O and 3,4-Bis(3,5-dimethyl-4-isoxazolyl)-N-butyl-1,8-naphthalimide 2O were prepared via two step Suzuki coupling reaction of aryl boronic acid and esters, and their photochromic fluorescence properties were investigated. Although all prepared bisaryl naphthlimides were fluorescence due to the naphthlimide moiety, among them photochrome 1O displayed photochromism. On exposure to ultraviolet light, the photochrome 1O showed a pale yellow to blue-green colour change due to the formation of ring closed form 1C, which reversed to the ring opened form 1O on exposure to visible light. Conversion ratio and quantum efficiency (from O to C form) for 1O were also determined. Additionally, a solvent effect on the fluorescence properties of 1O and 2O was investigated. Increase of solvent polarity results in a red shift (to longer wavelengths) of the fluorescence emissions.http://dergipark.gov.tr/jotcsa/issue/27167/296370?publisher=turchemsocPhotochromismFluorescenceDiaryletheneNaphthalimide
spellingShingle Ersin ORHAN
Synthesis of Novel Diarylethenes Bearing Naphthalimide Moiety and Photochromic Fluorescence Behaviors
Journal of the Turkish Chemical Society, Section A: Chemistry
Photochromism
Fluorescence
Diarylethene
Naphthalimide
title Synthesis of Novel Diarylethenes Bearing Naphthalimide Moiety and Photochromic Fluorescence Behaviors
title_full Synthesis of Novel Diarylethenes Bearing Naphthalimide Moiety and Photochromic Fluorescence Behaviors
title_fullStr Synthesis of Novel Diarylethenes Bearing Naphthalimide Moiety and Photochromic Fluorescence Behaviors
title_full_unstemmed Synthesis of Novel Diarylethenes Bearing Naphthalimide Moiety and Photochromic Fluorescence Behaviors
title_short Synthesis of Novel Diarylethenes Bearing Naphthalimide Moiety and Photochromic Fluorescence Behaviors
title_sort synthesis of novel diarylethenes bearing naphthalimide moiety and photochromic fluorescence behaviors
topic Photochromism
Fluorescence
Diarylethene
Naphthalimide
url http://dergipark.gov.tr/jotcsa/issue/27167/296370?publisher=turchemsoc
work_keys_str_mv AT ersinorhan synthesisofnoveldiarylethenesbearingnaphthalimidemoietyandphotochromicfluorescencebehaviors